Cigarette packs could have a special compartment for the tips.
Integrate exercise equipment two-way with tv console / computer for scenic routes worldwide (film vs game) with speed / resistance response
A city map to locate trees which you can carve something about love into them.
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No primeiro e no ultimo dia dos feriados prolongados caminhões deveriam ser proibidos de circular nas estradas brasileiras.
Um sistema automatico de pedido de taxi facilitaria a vida do taxista e agilizaria as coisas. Além de possibilitar o pedido pelo Twitter.
Create a movement in Belo Horizonte, just like Guerrilla Gardening, to incentivate people to take care of gardens around the city.